The DSX E doesn't pick a surface and neither should you. The Bosch SX Sprint motor has smooth assist up to 28mph, working with rather than instead of the rider. Expert engineering makes the Series 4 Aluminum frame a smooth operator. Shimano Deore 12-speed gearing beats any gradient the motor doesn't. Vee Tire Quikstyk rubber is wide, tubeless-ready and confident on any surface. A dropper seatpost sorts the descents. Rack and fender mounts are the bike's ace in the hole. The DSX E is built for the ride you didn't plan.